Self-sharpening adjustable packer-head plate for tile-machines



J. VOGT. SELF SHARFEM'NG ADJUSTABLE PACKER HEAD PLATE FOR TILE MACHINES.

APPLICATION FILED JUNE 28. I919.

Patented Jan. 20,1920.

"III

' JOSEPH VLOGT, OF RICHMOND, MINNESOTA.

SELF-SHARPENING ADJUSTABLE PACKER-I-IEAD PLATE FOR TILE-MACHINES.

Specification of Letters Patent.

Patented Jan. 20, 1920.

Application filed June 28, 1919. Serial No. 307,274.

To all whom it may concern: lo it known that I, Josnrrr Voe'r, a citizen of the United States, residing at Richmond, in the county of Stearns and Stateof Minnesota, have in 'ented certain new and useful Improvements in Self-Sharpen ng Adjustable Packer-Head Plates for Tileh'lachine's, of which the following is a specification, reference being had tothe accom panying drawings.

'l hisinvention relates to the art of cement tile manufacturing machines, particularly of the W. and H. E. Dunn type patented August at. 1914, Patent No. 1,106,086, and particulm'ly to simple, cliicient and practical improvements, especially adapted for use in connection with the packerhead employed in connection with the class of machine heretofore mentioned, and it is the aim to prolong the life of such packer heads.

Heretofore in cement drain tile machines of the type above mentioned the packer heads or shells very soon wear out, necessitating new ones being purchased and installed, particularly due to the fact of the old ones being worn near the top and consequently clogging, when moving upwardly through the jacket or mold. It has been found that when it is'necessary to install a new packer head, the manufacturer is placed under considerable expense for new packer heads .or shells, and furthermore, the old ones are useless andconsequently dispensed with, in fact the old ones are a complete loss. The present improvements contemplate the provision of selfsharpeningadjustable packer or shell plates, for attachment to the packer head or shell, whereby old ,packer heads or shells may be renewed and used practically indefinitely, so that drain tiles maybe molded or formed with old packer heads or shells as good if not better than those constructed fromnew packer heads or shells. 7

Furthermore, it will be found-that jthe packer heads or shells used in connection with the W. and :E. Dunn I11aG hine wear out very rapidly, in fact a great'many of them are worn out after one days use,

thereby requiring'it to beset asidefasuseless. The'wear upon these types {of packer heads or .she'lls isgreater near the-top than at the bottom, that "is meal-the marginal corner edge of the top, and the wear on the packer head at this point reduces thediameter of the packer" head of shell, in other words tends to taper the packer head toward the top, naturally when the packer head is in use, it will become clogged between its circumference and the inner surface of the jacket or mold. When the packer head becomes clogged in this manner it will tend to wedge and in this case the drain tiles that may be constructed with the worn packer head are very inferior for the purpose for which they are intended.

The present invention aims more specifically to provide self-sharpening adjustable plates constructed of diamond tool steel and hardened, so thatnot only will the packer head move through the material or cement without clogging or without wedging, but will also construct or form a drain tile as good, if not better than a drain tile formed by the usual packer head used in the Dunn type of drain tile machine.

A plurality of these self-sharpening adjustable plates are carried by the upper face of the packer head and when their edges become worn, they may be easily adjusted, to take up the slack orthe lost movement, and when the edges of the plates become worn down to a slanting or inclined or tapered form, the plates may be inverted until they are correspondingly worn on their edges but in the opposite direction, then the platesmay again be inverted. In fact, these wear plates may be used almost indefinitely, and furthermore, it is unnecessary to set aside the old packer heads or shells, for it is only necessary to adjust or invert the wear plates, or to'provide new wear plates. It ha been found that by the use of wear plates of this kind, of the self-sharpening and adjustable type, the packer head or shell will practically outwear the cement tile machineas a whole. hen the packer head or shell is moving through the jacket or mold of the machine, the ,packer shoes act to pack the cement against the inner surface of the jacket ormold, While the self-sharpening adjustable plates act to out the way for the packer head, and the, packer head, in its travel through the cement or material, acts tosmooth'the inner surface of-the drain tile to be formed. v l

v A further object of the invention is the provision of means for fastening the selfsharpenin-g adjustable wear plates. on the upper end of the packer head or shell.

The entire sum and substance of the invention contemplates improvements, whereby old packer heads or shells of the drain tile machines may be renewed, in fact their lives extended, so that it is practically unnecessary to purchase new packer heads or shells.

While the design and construction at present illustrated and set forth is deemed preferable, it is obvious that as a result of a reduction of the invention to a more practical form for commercial purposes, the invention may be susceptible to changes, and the right to these changes is claimed, Jl'OVlClGCl they are com nehended within the scope of what is claimed.

The invention comprises further features and combination of parts, as will be hereinafter set forth, shown in the drawings and claimed.

In the drawings F igure 1 1s a vertical sectional View through a cement drain tile machine, of the type heretofore mentioned and showing the improved Sefshar-pwiug adjustable plates as mounted upon the packer head or shell.

Fig. 2 is an enlarged detail perspective view of the packer head removed, showing the selfsharpening adjustable plate mounted thereon.

Fig. 3 is a plan view of the packer head.

Fig. 4; is an enlarged vertical sectional view through the packer head.

Fig. 5 is a detail view of one of the plates.

Referring more especially to the draw ings, 1 designates the packer head or shell, which comprises the top wall or plate 2 downwardly from which a cylindrical flange 3 extends. Forming an integral part of the upper surface of the top wall or plate 2 is an enlargement d, and extending downwardly from the under face of the top wall is an extension 5, provided with a threaded bore ('3. This threaded bore 6 is adjacent the enlargement l, which is hollow, the interior thereof is larger in diam-- eter than the threaded bore and is approximately spherical in shape. The threaded bore receives the threaded end of the packer head operating spindle 7, which is operated to move the packer head or shell through the jacket or mold.

Arranged at spaced intervals near the margin of the upper face of the top wall or plate is a plurality of self-sharpening adjustable plates 8, which may be any suitable shape, preferably as shown. These self-sharpening adjustable wear plates are designed to be constructed of diamond tool steel suitably hardened. and have outwardly arcuately curved edges 9, corresponding substantially to the margin of the top wall or plate of the packer head. These plates are provided with openings 10 near their central parts, and additional openings 11 near their ends. Also arranged at spaced intervals adjacent the arcuate marworn as to render them useless.

gins of the plates are packing members 12,

consisting of vertical blocks or shoes. These shoes or blocks, it'will be observed in Fig. 3, are substantially elliptical in cross-section and their outer surfaces are curved as shown. The curvatures of the outer faces are more abrupt than the arcuate curvatures of the outer edges of the plates. These packing members 12 are provided with. vertical openings v13, through which suitable screws or bolts 14 pass. The lower cndsof the bolts or screws are threaded into enlargements 15 of the under surface of the top wall or plate of the packer head. The screws or bolts also pass through the cen tral openings 10 of the wear plates, thereby not only securing the packing members or shoes in place, but also clamping the plates between the shoes or packing members and the top wall or plate 111 the packer head.

The central openings of the plates are considerably larger in diameter than the diam eters of the bolts or screws, so as to permit the self-sharpening wear plates to be adjusted. In fact, the wear plates can be ad justed slightly in a plane with the margin of the top plate, or may be adjusted on angles, or may be adjusted radially outwardly, and when adjusted radially, outwardly, they may be adjusted On a slight angle, so as to more readily cut through the cement or material to be formed into the tile. The additional openings receive screws or threaded pins 16, which are threaded into the top wall or plate of the packer head, so as to hold the self-sharpening wear plates in different adjusted positions. In fact, the additional openings are larger in diameter than the pins or screws so as to permit the plates to be easily adjusted as may be found necessary.

Arcuate curved edges of the self-sharpening wear plates become worn in a slanting or tapered direction, owing to constant use, and when so worn, the plates may be inverted so as to wear in the opposite direction. When the arcuate curved margins of the plateswear in the opposite direction they may again be inverted, and it is obvious that this process can be consecutively repeated, until the plates are sufliciently Such worn plates then be dispensed with and new ones employed and in this way the packer head is being constantly renewed, and the life thereof prolonged.

In the operation of a machine of this char acter, the spindle or packer head is disposed in its lowest initial position, and the worm shaft, 63 dropped so as to disengage the worm. The first step in order to form a dram tile embodies the raising of the upper die ring 17, so as to permit the placing. of

iso

shaft 22 by means of the crank'24, and when the jacket or mold is in place the upper d e ring is loweredu-ntilit engages the upper end of said jacket. Thecpacker or spindle head is then engaging through the lower die ring. The required amount of cement or otherplastic material is then poured into the jacket or mold through the upper die ring, a cylindrical hopper 89 being placed upon said ring to facilitate this procedure. lVhen the jacket is charged, power is applied to the driving shaft 46 by manipulating the crank 50, thus impartinga revolublemovement to the'packer or spindle head, which forms a closure for thelowerend of the jacket-and upon which the introduced material rests. This revoluble movement carries the spindle or pack-erhead in a direction the reverse of clockwise, and the action of the packing members, blocks or shoes will (be to compress the material against the wall of the jacket or mold, therapid movement causing an effective agitation of those portions ofthe charge which have not yet come under the influence of the rotating process. The, operator now presses the foot lever to throw tlie,,wo11n. in. mesh with its gear, and fcausingthe pinion which engages the racksleeve 32 to elevatethe spindle 7, carrying I the rotating spindle or packer head upward through the jacket or mold, the toes of the shoes being adjusted at a suitable angle to force the required amount of material centrifugally against the jacket or mold. thus forming a tubular pipe or. 'cement'tile of the required diameter and thickness. lVhen the head has reached the limit of its upward travel, the trip hook 82 will engagethe endof the arm 81 and disengage the dog 79 from the oil cup. This will permit the end of the swiveled shaft 63 to drop by gravity, throwing the worm out of gear, and allowing the packer or spindle head to fall to its initial position, the worm 62 remaining out of gear until the shaft is lifted again by means of the foot lever. The driving shaft is now stopped, the upper die ring raised by rock ing the shaft until free from the jacket and the latter, with the formed tile lifted from the lower die ring, and conveyed to any suitable location, the jacket opened by releasing the latch and removed from the tile, and the empty jacket is then closed and locked and replaced in its seat upon the'lower die ring, the upper die plate lowered thereon in readiness for another charge of cement or concrete.

The operation of the type of machine herein how to which this improved removable packer or spindle head is applied, may be clearly understood from the Patent #1,106,086, issued to W. E. and H. E. Dunn. The type of machine herein shown forms no part of the present invention, but is merely illustratedin order to show the application of the improved removable spindle or packer head applied.

It is obvious that any other suitable securing means other than shown may be em ployed for securing the segmental wear plates and the shoes to the top wall of the spindle or packer head, it being the alm that theinventor is not to be limited to such minor details, for it is apparent that these details may be' altered within the scope of what is claimed.

While the flange 3 depends from the plate 2, the flange and the plate are constructed separately. In fact, the top wall or plate 2 upon its upper surface is provided with an annular recess 2, as illustrated clearly in Fig, 4:, for the reception of the annular flange. 3. This annular flange. 3 overlies the top wall or plate 2, while the plate 2 fits within the flange. In fact, the annular flange 3 is countersunk in the upper surface of the plate 2, thereby insuring a rigid construction. It isobvious that the top wall or plate 2 can be used almost indefinitely, by simply renewing the band or flange 3. In other words, when the band or flange 3 is worn out, a new one may be connected to the top wall or plate.

The invention havingbeen set forth, what is claimed as new and useful is: a

1. In a movable spindle packer head for cement tile machines, the combination with a packer head having a top wall, of means secured at spacedintervals to the top wall near the margin thereof, for renewing the packer spindle head.

2. In a movable spindle packer head for cement tile machines. the combination with the spindle packer head having a top Wall, of a plurality of segmental Wear plates secured upon the top wall at spaced intervals near the margin of the packer head. 7

3. In a movable spindle packer head for cement tile machines, the combination with the spindle packer head having a top wall,

of a plurality of segmental wear plates secured upon the top wall at spaced intervals near the margin of the packer head, and packer shoes secured on said wear plates.

4. In a movable spindle packer head for cement tile machines, the combination with the spindle packer head having a top wall, of a plurality of packer shoes detachably secured adjacent the margin of the top wall, a plurality of segmental wear plates interposed between the packer shoes and the top wall, said wear plates being adjustable to accommodate for the Wear on their edges adjacent the margin of the top Wall.

5. In a movable spindle packer head for cement tile machines, the combination with the spindle packer head having a top wall, of a plurality of segmental wear plates being detachably and adjustably secured to the top wall at spaced intervals and having arcuate curved margins, which through the medium of adjusting said plates, may be arranged in different positions relatively to the margin of the top wall.

6. In a movable spindle packer head for cement tile machines, the combination with the spindle packer head having a top wall, of a plurality of segmental wear plates being detachably and adjustably secured to the top wall at spaced intervals and having arcuate curved margins, which through the medium of adjusting said plates, may be arranged in different positions relatively to the margin of the top wall, and a plurality of packer shoes arranged at spaced intervals and being detachably secured to said wear plates.

7. In a movable spindle packer head for cement tile machines, the combination with a spindle packer head having a top wall, of a plurality of segmental wear plates having arcuate curved margins and being invertibly and detachably secured to the top wall at spaced intervals, whereby the arouate curved margins may be arranged rela tively to the circular margin of the top wall.

8. In a movable spindle packer head for cement tile machines, the combination with a spindle packer head having a top wall, of a plurality of segmental wear plates hav ing arcuate curved margins and being invertibly and detachably secured to the top wall at spaced intervals, whereby the arouate curved margins may be arranged relatively to the circular margin of the top wall, said plates being adjustable, whereby their arcuate curved margins may be arranged in different positions relatively to the circular margin of the top wall.

9. In a movable spindle packer head for cement tile machines, the combination with a spindle packer head having a top wall, of a plurality of segmental wear plates having arcuate curved margins and being invertibly and detachably secured to the top wall at spaced intervals, whereby the arcuate curved margins may be arranged relatively to the circular margin of the top wall, said plates being adjustable, whereby their arcuate curved margins may be arranged in different positions relatively to the circular margin of the top wall, and a plurality of packer shoes arranged at spaced intervals and being detachably secured to the wear plates.

10. In a movable spindle'packer head for cement tile machines, the combination with the spindle packer head having a top wall, of a plurality of segmental wear plates having arcuate curved margins and being in 'vertible and arranged at spaced intervals, whereby the arcuate curved margins may be arranged relatively to the circular margin of the top wall, a plurality of packer shoes arranged at spaced intervals adjacentthe upper faces of said plates, and means passing through the shoes and through the plates foradjustably and detachably securing the plates to the top wall, whereby their arcuate curved margins maybe arranged in different adjusted positions relatively to the circular margin of the top wall.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

JOSEPH VOGT.

Witnesses:

WM. MEENING,

CLEMENS ,EFFINGER. 

